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Authors(1) :-Dr. Nirmal Kumar Kund
In most casting applications, dendritic microstructure morphology is not desired because it leads to poor mechanical properties. Forced convection causing sufficient shearing in the mushy zone of the partially solidified melt is one of the means to suppress this dendritic growth. The dendrites formed at the solid-liquid interface are detached and carried away due to strong fluid flow to form slurry. This slurry, consisting of rosette or globular particles, provides less resistance to flow even at a high solid fraction and can easily fill the die-cavity. The stated principle is the basis of a new manufacturing technology called “semi-solid forming” (SSF), in which metal alloys are cast in the semi-solid state. This technique has numerous advantages over other existing commercial casting processes, such as reduction of macrosegregation, reduction of porosity and low forming efforts. Among all currently available methods available for large scale production of semisolid slurry, the use of mechanical stirrer, electromagnetic stirrer and cooling slope have proved to be very effective in both semisolid slurry production and near net shape components manufacturing, and therefore possess the utmost potential for commercialization in a wide range.
SSF, Slurry, Semisolid, Technology
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- Manish Daiya, Identification and Analysis of Casting Defects, International Journal of Scientific Research in Science and Technology, 2017, Volume 3, Issue 7, pp. 78-81.
- C. R. Kothari, Research Methodology: Methods and Techniques, New Age, 1 January 2014.
- P. N. Rao, Manufacturing Technology-Foundry, Forming and Welding, Tata McGraw-Hill Publications, New-Delhi, 1998.
Published in : Volume 3 | Issue 8 | November-December 2017
Date of Publication : 2017-12-31
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 68-75
Manuscript Number : IJSRST173822
Publisher : Technoscience Academy
PRINT ISSN : 2395-6011
ONLINE ISSN : 2395-602X
Cite This Article :
Dr. Nirmal Kumar Kund, "SSF Technology", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 3, Issue 8, pp.68-75, November-December-2017
URL : http://ijsrst.com/IJSRST173822